Improvement in gates



J. s. GORBIN. GATE.

No; 40,609. Patented Nov. 17, 1863.

UNITED STATES PATENT OFFICE.

, J. S. GORBIN, OF ANN ARBOR, MICHIGAN.

IMPROVEMENTYIN GATES.

Specification forming part of Letters Patent No. 40,609, dated November 17, 1863.

To all whom it may concern.-

Be it known that I, J, S. O RBIN, of Ann Arbor, in the county otWashtenaw and State of Michigan, have invented a new and Improved Gate; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had'to the accompanying drawings, making a part of this specification, in which- Figure 1 represents a sectional face view of a gate constructed according to my invention when closed. Fig. 2 is a transverse vertical section of the same when opened, the line as :0, Fig. 1, indicating the plane of section.

Similar letters of reference in both-views indicate corresponding parts.

. principle of lazy-tongs by means of pivots b,

as clearly shown in Fig. 1 of the drawings. This gate is secured to an upright post, B, by means of a pivot, 11*, passing through the end of one of the slats, and a slot, 0, in said post forms the guide for the gate, and ,a bolt, cl, which extends through a slot, e, in the post at right angles to the slot 0, prevents the gate from tilting over and serves to open and close the same.

By referring to Fig. 1 of the drawings it will be readily understood that on raising the bolt (1 the gate opens, and on depressing said bolt the gate closes. 1

With large gates the operation of opening and closing must be done by a direct strain, and I eti'ect this object in the following manner: A cord or rope, f, is secured at about the middle of its length to the bolt d, which projects from the gate through the slot 6, and oneend,f, of this rope is drawn over apulley, g, at the top of the post B, and over a pulley,

h, at the outer end of an arm, D, which ex-' tends from the post in a horizontal direction. The other end, f, of the rope f passes from the loop down under a pulley, i, and up over the pulleys g and h, at the side of the first end, said pulleys being provided with two grooves to prevent the two ends from running one on the top of the other. By pulling the endf the gate opens, and by pulling the end j the gate closes. In a full-sized gate, the arm D will be made sufficiently long to enable the driver of a carriage or vehicle to pull the ropes and open the gate without leaving his seat, and it is obvious that the same arrangement of ropes has to be applied to both sides of the post to permit the operation of the gate by persons coming in either direction. It is needless to remark that the arm D ought to be supported by braces, and in order to reduce the friction the bolts 01 may be surrounded by rollers, one on either side of the gate.

I do not claim, broadly, the construction of gates on the plan of lazy-tongs; but

What I claim as new, and desire to secure by Letters Patent, is

The arrangement of the fixed pulleys g h '5 and cord f with the post B, slotted, as shown, gate A, and bolt d, all'construoted and operating as herein shown and described.

J. S. OORBIN.

Witnesses:

I). S. TwrrcnELL, L. E. PRINDLE. 

